Afcona 4201

Modified polyurethane polymer.

Calculation method for the required amount of AFCONA-4201 on pigment:

• TiO2 : 2 - 3%
• Other inorganic pigments : 2 - 4%
• Organic pigments : 20 - 40%
• Carbon blacks : 20 - 60% 

AFCONA-4201 should be incorporated in the mill base before adding the pigments.

AFCONA-4201 is a result of an innovative concept of polyurethane dispersants. This innovative technology is based on an own new developed intermediate monomer and own new developed anchoring groups.

AFCONA-4201 is based on the same chemical structure of AFCONA-4200. Compare to AFCONA-4200, it has a longer polymer tail, which proved better steric hindrance. Compared to AFCONA-4200 the differences are as below:
1) AFCONA-4201 Performs better in pigment stability and color and gloss.
2) AFCONA-4201 has better compatibility and better performance in common resin systems such as PU, Epoxy, polyester/Melamine, thermosetting acrylic/melamine, alkyd/melamine, acid curing, NC and UV. However AFCONA-4200 is better in more difficult systems such as thermoplastic acrylic.
3) AFCONA-4201 supply in almost 100% active ingredients, therefore, it is an excellent dispersant for high solid coatings like polyurethane, epoxy and UV coating.
4) The almost 100% solvent-free form makes it also a very interesting dispersant for ink formulations. This due to the free choice of solvents.

Note:
1)AFCONA – 4201 will become slightly hazyat temperatures below 5° C. Even at -15° Cthe slight haziness stay the same. This willnot influence the quality.
2)There may be some slight thixotropicbehavior. This is due to the catalyst that weuse during

AFCONA-4201 should be stored in a cool dry place. When kept in an original unopened container, it will keep up to 5 years from the date of manufacture. The expiry date is indicated on the container.